Just write random things to them over and over again. What about a USB flash drive or an SD memory card? They are essentially SDDs, yet most the information I read online say to wipe them like an HDD. I know to you have to wipe the different drives using different methods because of the differences in their composition and how they function. I wipe my HDD drives using either Kill Disk or any other software that will just overwrite the entire drive with random characters a few times over. I wipe my SSD and NVMe drives with either the manufacturer's software tool using the secure erase functions, or I load up Parted Magic and use the secure erase function on there. How do you securely wipe a USB flash drives? I guess the real question is, do you wipe it like an SSD or an HDD?
